I kiss my kids on the cheek, forehead etc. I don't kiss them on the lips. I don't kiss my parents on the lips. It is gross and germy. My parents used to kiss my on the lips until I got old enough to turn my cheek.
We used to go to a church and one of the people there went by "greet the brethren with a holy kiss" and it was just gross. I remember thinking it was gross then.
My issue is a germ thing, not because I think it is sexual etc
When I worked in childcare I didn't want to be kissed by all the kids ewww. I would turn my cheek. For me it is purely about germs etc